<script setup>
import { User, Lock } from "@element-plus/icons-vue";
import { ref } from "vue";
import { ElMessage } from "element-plus";
import { useRouter } from "vue-router";
// 设置跳转页面的方法
const router = useRouter();
//控制注册与登录表单的显示， 默认显示注册
const isRegister = ref(false);
const registerData = ref({
    username: "",
    password: "",
    rePassword: "",
});
const loginData = ref({
    username: "",
    password: "",
});

// 密码校验
const passwordValidator = (rule, value, callback) => {
    if (value == "") {
        callback(new Error("请再次输入密码"));
    } else if (registerData.value.password != value) {
        callback(new Error(`两次输入密码不同`));
    } else {
        callback();
    }
    return;
};

// 校验规则
const rules = {
    username: [
        { required: true, message: "请输入用户名", trigger: "blur" },
        { min: 3, max: 16, message: "长度为3-16位", trigger: "blur" },
    ],
    password: [
        { required: true, message: "请输入密码", trigger: "blur" },
        { min: 6, max: 16, message: "长度为6-16位", trigger: "blur" },
    ],
    rePassword: [
        {
            required: true,
            validator: passwordValidator,
            message: "两次输入密码不同",
            trigger: "blur",
        },
    ],
};
import { userRegisterService, userLoginService } from "../api/user";
import { useTokenStore } from "../stores/token";
const tokenStore = useTokenStore();
const register = async () => {
    registerData.value.username = registerData.value.username.trim();
    registerData.value.password = registerData.value.password.trim();
    registerData.value.rePassword = registerData.value.rePassword.trim();
    let res = await userRegisterService(registerData.value);
    ElMessage.success(res.message ? res.message : "恭喜你，注册成功");
};
const login = async () => {
    loginData.value.username = loginData.value.username.trim();
    loginData.value.password = loginData.value.password.trim();
    let res = await userLoginService(loginData.value);
    ElMessage.success(res.message ? res.message : "恭喜你，登录成功");
    router.push("/");
    tokenStore.setToken(res.data);
};
</script>

<template>
    <el-row class="login-page">
        <el-col :span="12" class="bg"></el-col>
        <el-col :span="6" :offset="3" class="form">
            <!-- 注册表单 -->
            <el-form
                :rules="rules"
                :model="registerData"
                ref="form"
                size="large"
                autocomplete="off"
                v-if="isRegister"
            >
                <el-form-item>
                    <h1>注册</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input
                        v-model="registerData.username"
                        :prefix-icon="User"
                        placeholder="请输入用户名"
                    ></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input
                        v-model="registerData.password"
                        :prefix-icon="Lock"
                        type="password"
                        placeholder="请输入密码"
                    ></el-input>
                </el-form-item>
                <el-form-item prop="rePassword">
                    <el-input
                        v-model="registerData.rePassword"
                        :prefix-icon="Lock"
                        type="password"
                        placeholder="请再次输入密码"
                    ></el-input>
                </el-form-item>
                <!-- 注册按钮 -->
                <el-form-item>
                    <el-button
                        class="button"
                        type="primary"
                        auto-insert-space
                        @click="register"
                    >
                        注册
                    </el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link
                        type="info"
                        :underline="false"
                        @click="isRegister = false"
                    >
                        ← 返回
                    </el-link>
                </el-form-item>
            </el-form>
            <!-- 登录表单 -->
            <el-form
                :rules="rules"
                :model="loginData"
                ref="form"
                size="large"
                autocomplete="off"
                @keydown.enter="login"
                v-else
            >
                <el-form-item>
                    <h1>登录</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input
                        v-model="loginData.username"
                        :prefix-icon="User"
                        placeholder="请输入用户名"
                    ></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input
                        v-model="loginData.password"
                        :prefix-icon="Lock"
                        type="password"
                        placeholder="请输入密码"
                    ></el-input>
                </el-form-item>
                <el-form-item class="flex">
                    <div class="flex">
                        <el-checkbox>记住我</el-checkbox>
                        <el-link type="primary" :underline="false"
                            >忘记密码？</el-link
                        >
                    </div>
                </el-form-item>
                <!-- 登录按钮 -->
                <el-form-item>
                    <el-button
                        class="button"
                        type="primary"
                        auto-insert-space
                        @keyup.enter="login"
                        @click="login"
                        >登录</el-button
                    >
                </el-form-item>
                <el-form-item class="flex">
                    <el-link
                        type="info"
                        :underline="false"
                        @click="isRegister = true"
                    >
                        注册 →
                    </el-link>
                </el-form-item>
            </el-form>
        </el-col>
    </el-row>
</template>

<style lang="scss" scoped>
/* 样式 */
.login-page {
    height: 100vh;
    background-color: #fff;

    .bg {
        background: url("@/assets/logo2.png") no-repeat 60% center / 240px auto,
            url("@/assets/login_bg.jpg") no-repeat center / cover;
        border-radius: 0 20px 20px 0;
    }

    .form {
        display: flex;
        flex-direction: column;
        justify-content: center;
        user-select: none;

        .title {
            margin: 0 auto;
        }

        .button {
            width: 100%;
        }

        .flex {
            width: 100%;
            display: flex;
            justify-content: space-between;
        }
    }
}
</style>
